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地球化学方法勘查的目的,是查明那些在非均质的地球化学场中,以元素在空间分布形式出现的矿体有关的异常。这些异常位于有利的地质构造中。在矿体周围有元素的带入或带出的异常。在对异常作分类时,应考虑其特征、衬度、组合程度。为强化弱晕及确定最大矿化中心,可采用累加和累乘指数。原生晕的定量特征包括根据地质剖面的克拉克值、浓集系数及元素总含量的评价,浓集克拉克值是某地质体中元素含量与指示元素克拉克值含量之比。
The purpose of geochemical exploration is to identify ore body-related anomalies that occur in the form of spatial distribution of elements in heterogeneous geochemical fields. These anomalies are located in favorable geological formations. There are elements around the ore body brought into or out of the anomaly. In the classification of anomalies, should consider its characteristics, contrast, combination level. To strengthen the weakness and determine the maximum center of mineralization, can be used to accumulate and accumulated by the index. Quantitative characteristics of primary halo include assessment of the Clarke value, concentration coefficient and total elemental content of the geological profile. The concentration Clarke value is the ratio of the elemental content in a geological body to the elemental Clarke value.